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March 22, 1955 A. w. FEIERTAG SINGLE NoTcH PUNCH 6 Shee'ts-Sheet l Filed Nov. 27, 1951 INVENTOR A Apr/wp w. Fi/ima mi. M. Y .T..

March 22, 1955 A. w. FEIERTAG SINGLE NOTCH PUNCH 6 Sheets-Sheet 2 Filed NOV. 27, 1951 March 22, 1955 A. w. yFl-:IERTAG SINGLE NoTcH PUNCH 6 Sheets-Sheet 3 Filed Nov. 27, 1951 s f@ @Q mm.

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March 22, 1955 A. w. FEIERTAG 2,704,578

SINGLE NOTCH PUNCH Filed Nov. 27, 1951 6 Sheets-Sheet 4 Arrows/ini March 22, 1955 A. w. FEIERTAG SINGLE NoTcH PUNCH 6 SheetS-Sheet 5 Filed NOV. 27, 1951 March 22, 1955 A. w. FEIERTAG SINGLE NoTcH PUNCH 6 Sheets-Sheet 6 Filed Nov. 27, 1951 IIHIIIIIII/ ooo O O O O United States Patent O SINGLE N OTCH PUNCH Arthur W. Feiertag, Athens, Ohio, assignor, by mesne assignments, to Royal McBee Corporation, a corporation of New York Application November 27, 1951, Serial No. 258,450

13 Claims. (Cl. 164-113) This invention relates to a machine for notching classification cards and the like.

A main object of the present invention is to provide a card punching machine having a single punch carried by a shiftable punch carrier which can be shifted to one position to effect a deep notching of a card when the punch is actuated or to another position to effect a shallow notching of a card when the punch is actuated.

Another object of the present invention is to provide a machine as above described in which there is a deep notch operating bar and a shallow notch operating bar so connected to the punch carrier and to an operating mechanism for the punch that when a particular bar is shoved inwardly, the carrier is first shifted in accordance with the bar that is actuated and thereafter the punch is automatically actuated.

Various other objects will be apparent from the following description taken in connection with the accompanying drawings wherein:

Fig. 1 is a plan view of a machine embodying the con* cepts of the present invention with the cover thereof removed;

Fig. 2 is a sectional View in side elevation through the machine disclosed in Fig. 1, being taken along a line 2 2 of Fig. l;

Fig. 3 is a sectional view in side elevation of the machine taken along line 3-3 of Fig. 1;

Fig. 4 is a fragmentary sectional view taken in side elevation along line 4-4 of Fig. 1;

Fig. 5 is an isolated view in side elevation of part of the mechanism disclosed in Fig. 3;

Fig. 6 is a fragmentary horizontal sectional View taken along line 6-6 of Fig. 5;

Fig. 7 is a fragmentary View of Fig. 5 showing the parts in a subsequent stage of operation;

Fig. 8 is a fragmentary sectional view in side elevation showing the switch release mechanism;

Fig. 9 is a fragmentary view of Va card edge showing one eld as being deep-notched and another field being shallow-notched.

Referring to the accompanying drawings wherein similar reference characters designate similar parts throughout, the card-punching machine comprises a base 11 have.

ing feet 13, there being an operating mechanism mounted on the base and enclosed by a case cover 15 which is secured to the base. Referring particularly to Figs. l, 2 and 3, mounted on base 11 is a fabricated sheet metal frame generally entitled 17. Frame 17 may be conveniently divided into a forward sub-assembly 19 and a rearward sub-assembly 21 separated by an upright transverse bafe or guide plate 23, see Fig. 2, of which guide plate more will be presently said. Rear frame sub-assembly 21 includes a pair of relatively short side frame members 25 and 27 mounted on the base 11 and a pair of central frame members 29 and 31, the latter central frame member being relatively tall and mounted on the base 11 and having a configuration best shown in Fig. 3, and the former central frame member being relatively short and supported from the upper part of central frame member 31 by spacers 33 and tie plate 35. Side frame member 27 and central frame member 31 are connected by a tie plate 35.

Reciprocably or shiftably mounted in a manner to be presently explained between central frame members 29 and 31 is a punch carrier generally entitled 37 which is partly disposed in an opening 39 formed in case cover 15. Carrier 37 is adapted to be moved in a manner to be explained from an intermediate or neutral position forwardly or rearwardly to shallow or deep notch a card.

Carrier 37 is composed of two identical side plate members 41 and 43 connected together in spaced relation by spacer blocks 45, 47 and 49 (see Fig. 4), which blocks form an inclined gudeway for a punch 51.

Punch carrier 37 is reciprocably or shiftably supported at its rearward end by a guide rod 53 secured to and extending between central frame members 29 and 31, and extending through guide slots 55 formed in side plate members 41 and 43 of the carrier, and carrier 37 is reciprocably or shiftably supported at its forward end by baffle or guide plate 23 upon which it slidably rests (see Fig. 4). Punch carrier 37 is prevented from upward movement at its forward end by a pair of rollers 57 rotatably carried by carrier 37 on a shaft 59 and having rolling contact with the underside of a horizontal guide plate 61 mounted on forward frame sub-assembly 19, of which forward frame sub-assembly more will be presently said.

Carrier side plate members 41 and 43 are notched at 63 inwardly a distance substantially traversing the path of travel of punch 51, and the edges defining the notches are sharpened to coact with punch 51 for notching a record or classification card or check. Case cover 15 has vertical stop faces 65 (see Fig. 2) formed thereon, against which a classification card or check is abutted for purposes of notching the same, and therefore the position which carrier 37 is caused to assume relative to stop faces 65 will determine the depth of the notch cut in the card edge.

In whatever position carrier 37 is disposed, punch 51 is adapted to be actuated by a solenoid 67 mounted on tie plate 35. Solenoid 67 has a plunger 69 connected at its upper end to the outer end of an arm 71, the other end of which arm is tixed to a punch drive shaft 73 which is rotatably supported in central frame members 29 and 31. Plunger 69 is spring-urged upwardly by a tension spring 75 (see Fig. 4), connecting arm 71 to central frame member 29. Fixedly mounted on punch drive shaft 73 is a second arm 77 articulately connected at its outer end by a link 79 to the upper end of punch 51 to allow for forward and rearward bodily movement of the carrier relative to the bodily stationary arm 77. Solenoid 67 is adapted to be energized by a lead cable 81 (see Fig. 2).

It is evident, that when solenoid 67 is energized, its plunger will be drawn downwardly to drive punch 51 downwardly to notch a card, which is abutted against stop faces 65 on case cover 15, deep or shallow depending on the location of the carrier 37 relative to stop faces 65. Upon de-energization of solenoid 67 plunger spring 75 will cause the plunger 69 and therefore punch 51 to be raised to their elevated positions. Upward movement of these parts is limited by the engagement of arm 77 with spacer 33.

Carrier 37 is adapted to be positioned forwardly or rearwardly of its neutral or intermediate position and limited in such movement by the following mechanism:

Extending through the front of case cover 15 (see Fig. l) are the stems 79 and 81 of dual-stemmed operating bars 83 and 85, which stems extend through and are slidably supported by an upstanding traverse guide plate 87. Guide plate 87 forms a part of a forward frame subassembly 19, which sub-assembly also includes a pair of laterally spaced identical frame members 89 secured ta base 11. Batlle or guide plate 23, previously mentioned, is sandwiched between and secured to the rear end of forward frame members 89, and the forward ends of rear frame members 27, 31 and 25.

The inner or rearward ends of stems 79 and 81 are pivotally secured to the upper and lower ends. respectively, of a pair of laterally spaced rock links 93 ixedly mounted on a rock shaft 95 which is pivotally supported by hanger plates 97 and 99. The hanger plates are fixedly secured to frame members 89.

There is a third rock link 101 ixedly mounted on rock shaft 95 centrally thereof and between rock links 93 (see Figs. l and 5). Rock link 101 is connected by a drive link 103 to roller shaft 59 on punch carrier 37 and is therefore adapted to shift the'punch carrier when actuated. Drive link 103 preferably has an upwardly extending guide lug 105 riding in a guide slot 107 formed in horizontal guide plate 61.

Operating bars 83 and 85 are limited in their movement by limit studs 109 fixed to hanger plates 97 and 99 and engageable with stop lugs 111 and 112 formed on rock links 93. Studs 109, therefore, serve to determine the forwardmost and rearwardmost positions of carrier 37 and therefore determine the depth of the deep and shallow notches formed by the punch in a card abutted against the stop faces 65 on the case cover 15.

Carrier 37 is urged by a spring which will be presently described to assume an intermediate position between its forwardmost and rearwardmost positions. ln this intermediate position, it is apparent from Fig. 2 that operating bar 83, which serves to move carriage 37 rearwardly for shallow notching, is disposed further inwardly than operating bar 85 which serves to shift the carrier 37 forwardly for deep notching, and therefore, the machine is provided with a visual indication of which operating bar is to be shoved inwardly to obtain the desired depth of notch.

A mechanism is provided for energizing solenoid 67 whenever an operating bar is shoved inwardly, which mechanism is so timed as to drive punch 51 downwardly just as carriage 37 reaches its forwardmost or rearwardmost position. This mechanism includes a fourth rock link 113 (see Fig. 3), fixed to rock shaft 95. Referring to Figs. 3 and 5, at its upper end, rock link 113 has a laterally extending drive stud 115 slidably received within a slot 117 formed in a relatively long main switch trip link 119 which is urged forwardly by a tension spring 121 connecting the link to forward upright guide plate 87. Adjacent its rear end, switch trip link 119 slidably extends through rearward upright guide plate 23 to be guided thereby, and terminates in a generally upwardly extending nose. It will be apparent that when rock shaft 95 is rocked counterclockwise, switch trip link 119 will be released and be urged to move forwardly under the influence of tension spring 121, but when rock shaft 9S is rotated clockwise, the drive stud will positively drive switch trip link 119 rearwardly.

To the lower end of the fourth rock link 113 is pivotally secured the forward end of a relatively short switch trip link 123. the opposite end of which slidably extends through guide plate 23 to be guided thereby. Switch trip link 119 is provided with a laterally extending drive stud 125 disposed immediately adjacent the rear end of switch trip link 123 (see Fig. 3), whereby when rock link 113 is rocked counter-clockwise, switch trip link 123 will engage drive stud 125 and drive switch trip link 119 rearwardly against the resistance of tension spring 121.

Therefore, in either of which directions rock shaft is rocked, main switch trip link 119 will be driven rearwardly.

Tension spring 121 connecting the main switch trip link to guide plate 87 performs an additional function of serving to center the carrier 37 in a neutral or intermediate position. This is explained by the fact, that the tension spring is extended whenever the switch trip link 119 is moved rearwardly, and as previously explained whenever rock shaft 95 is rocked by operation of operating bars 83 and 85 in either direction, switch trip link 119 is moved rearwardly, and therefore, the rock shaft assumes the position disclosed in Fig. 3 when the tension spring 121 is under minimum extension. ln this position drive link 103 which connects rock shaft 95 to carrier 37 serves to dispose the carrier in its intermediate position.

Pivotally mounted on and adjacent the rear main end of switch trip link 119, intermediate its ends, is a latch release pawl 127.springurged in a clockwise direction by a tension spring 129 connecting the lower end of pawl 127 to main switch trip link 119. Held toward a shoulder 131 formed on pawl 127 is an ear 133 formed on a latch 135 which latch is pivoted at 134 to central frame member 31 and spring-urged in a counter-clockwise direction by tension spring 136 connected to central frame member 31. Latch 135 is limited in its downward or counter-clockwise movement by its engagement with base 11 of the machine (see Fig. 3).

Latched in an inoperative position by ear 133 on latch 135 is a switch operating arm 137, pivotally mounted at its forward or lefthand end on a shaft 138, said switch operating arm having a rearward end disposed normally under the ear 133 as clearly shown in Fig. 3.

Switch operating arm 137 is spring-urged upwardly in' a counter-clockwise direction by a tension spring 139 connecting the switch operating arm to central frame member 31. Switch operating arm 137 has a laterally extending ear or lug 141 extending through an opening 143 in side frame member 25 (see Fig. 2), and adapted to engage the button of a micro switch 145 mounted on the outside of side frame member 25. When the button is pressed, solenoid 67 is energized.

Pa-wl 127 has a lateral pin 147 extending over switch operating arm 137 (compare Figs. 5 and 6), and tension spring 129 is weaker than tension spring 139 so that when switch operating arm 137 is released, pawl 127 will be pivoted in a counter-clockwise direction by the engagement of the outer end of switch operating arm 137 with pin 147, for a purpose to be described.

The operation of the mechanism up to this point shows that upon inward movement of either of the operating bars, main switch trip link 119 will be moved rearwardly carrying pawl 127 therewith which will rock latch 135 clockwise to clear the latch of the rearward end of switch operating arm 137 to release the same for upward movement. This upward movement of switch operating arm 137 results in its ear 141 engaging the button on micro switch 145 to energize solenoid 67 which operates to drive punch 51 downwardly to notch a card. The parts are so dimensioned that latch 135 does not clear switch operating arm 137 until the punch carrier 37 is located almost at its forwardmost or rearwardmost position so that when solenoid 67 actuates punch 51 there results a shallow or deeg notch of substantially uniform depth, in one or more car s.

As is apparent from a comparison of Figs. 3 and 5, when an operating bar is depressed or shoved inwardly, shoulder 131 of pawl 127 will be moved rearwardly a short distance past the rear extremity of switch operating arm 137 which movement as above stated trips latch 135 and allows switch operating arm 137 to move upwardly under the intiuence of tension spring 139. Also, this upward movement will pivot pawl 127 in a counter-clockwise direction, spring 139 being stronger than spring 129 as previously mentioned. Fig. 5 depicts the parts at the time at which the pawl 127 has tripped latch 135 and before the switch operating arm is moved upwardly. In Fig. 7, the parts are depicted in an immediate subsequent period in which the switch operating arm has been moved upwardly and has pivoted pawl 127, moving the pawl out of engagement with the ear 133 on latch 135, said latch snapping off shoulder 131 and engaging the blunt end of switch operating arm 137. Therefore, when the switch operating arm is moved downwardly as will be subsequently explained, ear 133 fits under shoulder 131 so that the ear can once again latch over the rearward end of switch operating arm 137 despite the fact that the pawl may be held in its rearwardmost position because of the continued depression of an operating bar.

After solenoid 67 is energized, it must be de-energzed and for this purpose there is provided a switch release slide 149 slidably mounted for vertical movement on central frame member 31 by headed studs 151 which are fixed to central frame member 31 and have their shanks receivable through elongated guide slots formed in the release slide. Switch release slide 149 is spring-urged upwardly by a pair of tension springs 153 connecting the slide to central frame member 31 (see Fig. 8).

There is a third arm 155 xedly secured at one end to punch drive shaft 73, and at its outer end is adapted to engage and drive switch release slide 149 downwardly when solenoid 67 is energized. The lower end of switch release slide 149 is spaced above a pin 157 on switch operating arm 137 (see Fig. 8), a distance so that before the solenoid 67 and punch 51 reach the end of their strokes, switch release slide 149 engages the switch operating arm and pivots it or drives it downwardly to open the micro switch 145.

While so moving downwardly, the blunt end of switch operating arm 137 slides along ear 133 on latch 135, and pawl 127 follows the movement of switch operating arm 137 under the influence of its tension spring 129 until the underside of its shoulder 131 engages the upper face of ear 133 on latch 135. Further downward movement of switch operating arm 137 will allow ear 133 on latch 135 to pivot counter-clockwise under the influence of its spring 136 and allow the rearward end of the switch operating arm 137 to again be latched under ear 133 (see parts as shown in Fig. 8). When solenoid 67 is deenergized its natural rebound in conjunction with plunger spring 75 will return the plunger and punch to their upward positions where arm 77 engages spacer 33 to position he parts in their elevated positions (compare Figs. 4 an 8).

Although as above explained, latch tension spring 136 is operative to cause the latch to move back to its latching position, it is preferable to provide means for positively moving the latch back into its latching position due to the rapidity of the action of the solenoid. To this end, latch 135 is provided at its forward end with a laterally extending pin 159 extending under switch operating arm 137 (see Figs. 5 and 8), so that when the switch operating arm is driven downwardly by switch release slide 149, the switch operating arm will engage pin 159 and pivot latch 135 clockwise to again move latch ear 133 over the rearward end of switch operating arm 137. Counter-clockwise or downward movement of latch 135 is limited by its engagement with base 11 as previously explained. Therefore, from the above description, it will be apparent that pin 159 on latch 135 and latch tension spring 136 simultaneously act to pivot the latch to latching position after the latch is tripped and the solenoid is operated.

As a series of cards are being individually punched, the chips notched out will fall downwardly onto base 11 and for periodically cleaning out of the base, there is provided a door 161 pivotally mounted to base 11 and covering an opening in the base and latched in position by a conventional latch mechanism generally entitled 163.

The operation of the machine has been described along with the description and, therefore, need not be repeated. It is suicient explanation to state that when the upper operating bar 83 is shoved inwardly, carriage 37 will be shifted rearwardly and at approximately the time it reaches its rearwardmost point of movement the solenoid is energized to drive the punch downwardly and shallow notch the card or cards such as at 165 (see Fig. 9). The switch release mechanism thereafter de-energizes the solenoid allowing the parts to return to their inoperative positions. Tension spring 121 connecting main switch trip link 119 to the guide plate 87 serves to return punch carrier 37 to its intermediate or neutral position.

Upon a depression of the lower operating bar 85, carriage 37 will be shifted forwardly and just before the carrier reaches its forwardmost point of movement the solenoid is energized to drive punch 51 downwardly to deep notch the card or cards such as at 167 (see Fig. 9).

It is pointed out that arm 155 is not directly connected to slide 149, as it could be, because'the punch tends to stick in the cards being punched and the strong springs 153 function to pull the punch out of the cards, therefore the solenoid is not loaded up at the start as it would be if spring 75 were stronger.

It will be apparent, therefore, that a machine has been provided whereby a single punch is utilized which is carried by a shiftable carrier which can be shifted forwardly or rearwardly to deep or shallow notch a card. An operating system for the carrier is provided for so shifting the carrier, which operating mechanism is adapted to energize a solenoid just as the carrier reaches the end of its stroke so that shallow and deep notches of substantially uniform depth can be successively formed in a record car While I have shown a preferred form of my invention, it is to be understood that various changes may be made in its construction by those skilled in the art without departing from the spirit of the invention as defined in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a first operative position to a second operative position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first or second positions, and means actuated by said carrier operable to automatically actuate the punch when the carrier reaches either of said operative positions.

2. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from an intermediate position to a lirst operative position on one side of the intermediate position and to a second operative position on the opposite side of the intermediate position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its rst or second positions, and means actuated by said carrier operable to automatically actuate the punch when the carrier reaches either of said operative positions.

3. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a first operative position to a second operative position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first or second positions, means actuated by said carrier operable to automatically actuate the punch when the carrier reaches either of said operative positions, the carrier shifting means including a pair of operating bars, a mechanism connecting one operating bar to the carrier for shifting the carrier to its first operative position, and a mechanism connecting the other operating bar to the carrier for shifting the carrier to a second position.

4. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from an intermediate position to a lirst operative position on one side of the intermediate position and to a second operative position on the opposite side of the intermediate position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first or second position, means actuated by said carrier operable to automatically actuate the punch when the carrier reaches either of said operative positions, the carrier-shifting means including a pair of operating bars, a mechanism connecting one operating bar to the carrier for shifting the carrier to its iirst operative position, and a mechanism connecting the other operating bar to the carrier for shifting the carrier to its second operative position.

5. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a first operative position to a second operative position, a punch reciprocable in the carrier, means actuated by said carrier for automatically actuating the punch when the carrier reaches either its tirst or second operative positions, and means for optionally shifting the carrier to its first or second positions, the last-named means including a lever pivoted intermediate its ends on the frame, a first actuating member connected to the lever at one side of the pivot, a second actuating member connected to the lever at the other side of the pivot, whereby upon selective actuation of said members the lever can be optionally pivoted in one direction or the other, and means connecting the lever to the carriage to cause movement of the carriage in a direction corresponding to the direction in which the lever is moved.

6. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from an intermediate position to a first operative position on one side of the intermediate position and to a second operative position on the opposite side of the intermediate position, a punch reciprocable in the carrier, means actuated by said carrier for automatically actuating the punch when the carrier reaches either its first or second operative positions, and means for optionally shifting the carrier to its first or second positions, the last-named means including a lever pivoted intermediate its ends on the frame, a rst actuating member connected to the lever at one side of the pivot, a second actuating member connected to the lever at the other side of the pivot, whereby upon selective actuation of said members the lever can be optionally pivoted in one direction or the other, and means connecting the lever to the carriage to cause movement of the carriage in a direction corresponding to the direction in which the lever is moved.

7. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a rst operative position to a second operative position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first and second positions, means for reciprocating the punch when the carrier is disposed at either of its operative positions, comprising a solenoid connected to the punch for driving the same when energized, a switch operable when closed for energizing the solenoid, a pivotal switch operating arm engageable with the switch for closing the same and spring-urged toward engagement therewith, a pivotal switch latch latching the operating arm out of engagement with the switch, means carried by the first-named means for tripping the latch to free the operating arm for switch closing movement, and means responsive to actuation of the solenoid for de-energizing the solenoid after a predetermined amount of movement thereof.

8. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a first operative position to a second operative position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first and second positions, means for reciprocating the punch when the carrier is disposed at either of its operative positions, comprising a solenoid connected to the punch for driving the same when energized, a switch operable when closed for energizing the solenoid, a pivotal switch operating arm engageable with the switch for closing the same and spring-urged toward engagement therewith, a pivotal switch latch latching the operating arm out of engagement with the switch, means carried by the first-named means for tripping the latch to free the operating arm for switch closing movement, means responsive to actuation of the solenoid for opening the switch and relatching the operating arm- 9. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from an intermediate position to a first operative position on one side of the intermediate position and to a second operative position on the opposite side of the intermediate position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first or second position, means for reciprocating the punch when the carrier is disposed at either of its operative positions, comprising a solenoid connected to the punch for driving the same when energized, a switch operable when closed for energizing the solenoid, a pivotal switch operating arm engageable with the switch for closing the same land being spring-urged toward engagement therewith, a pivotal switch latch latching the operating arm out of engagement with the switch, means carried by the rst-named means for tripping the latch to free the operating arm for switch-closing movement, and means responsive to actuation of the solenoid for de-energizing the same after a predetermined amount of movement thereof.

l0. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from an intermediate position to a first operative position on one side of the intermediate Position and to a second operative position on the opposite side of the intermediate position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first or second position, means for reciprocating the punch when the carrier is disposed at either of its operative positions, comprising a solenoid connected to the punch for driving the same when energized, a switch operable when closed for energizing the solenoid, a pivotal switch operating arm engageable with the switch for closing the saine and being spring-urged toward engagement therewith, a pivotal switch latch latching the operating arm out of engagement with the switch, means carried by the first-named means for tripping the latch to free the operat- Cil ing arm for switch-closing movement, means responsive to actuation of the solenoid for opening the switch and relatching the operating arm.

l1. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a first operative position to a second operative position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first or second position, means for reciprocating the punch when the carrier is disposed at either of its operative positions, comprising a solenoid connected to the punch for driving the same when energized, a switch operable when closed for energizing the solenoid, and a pivotal switch operating arm engageable with the switch for closing the same and being urged toward engagement therewith, a pivotal switch latch latching the operating arm out of engagement with the switch, means responsive to movement of the firstnamed means for tripping the latch to free the operating arm for switch-closing movement, and means responsive to actuation of the solenoid for de-energizing the same after a predetermined amount of movement thereof.

l2. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a first operative position to a second operative position, a punch reciprocable in the carrier, means for optionally shifting the carrier to its first or second position, means for reciprocating the punch when the carrier is disposed at either of its operative positions, comprising a solenoid connected to the punch for driving the same when energized, a switch operable when closed for energizing the solenoid, and a pivotal switch operating arm engageable with the switch for closing the same and being urged toward engagement therewith, a pivotal switch latch latching the operating arm out of engagement with the switch, means responsive to movement of the first-named means for tripping the latch to free the operating arm for switch-closing movement, and means responsive to actuation of the solenoid for opening the switch and relatching the operating arm.

l3. A machine of the class described, comprising a frame, a punch carrier shiftably mounted on the frame for movement from a first operative position to a second operative position, 'a punch reciprocable in the carrier in a direction at a substantial angle to the direction of movement of the carrier, means for optionally shifting the carrier to its first or second position, and means actuated by said carrier operable to automatically actuate the punch when said carrier reaches either of said operative positions.

References Cited in the file of this patent UNITED STATES PATENTS 487,737 Hollerith Dec. 13, 1892 665,358 Adams Jari. 1, 1901 2,342,361 Niclas Feb. 22, 1944 2,585,720 Anderson Feb. 12, 1952 

